Document RestResponse

[lasteris]

Also, I have a bit reorganized chapters to make guide a little bit more consistent.

• Fixes: Document RestResponse<T> in rest client #43620

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It should be safe to merge provided you have a look at the other checks in the summary.

[lasteris]

@geoand Feel free to review, as you will be available for it, thank you
Also, need advice:
In Text you can see link:{jaxrsapi}/jakarta/ws/rs/core/Response.html[Response], not sure how to make this link right.

I'm not sure the example of retrieving properties from RestResponse fits well enough. Waiting for comments (

Honestly, while i was reading whole Guide many times, i thought that all text is a little bit not consistent/consecutive/logical, but maybe it is false feeling.

Upd. 1

I swapped the blocks Create the Jakarta REST resource AND Create the configuration precisely to maintain a logical sequence and not break the RestResponse description